Trane Fan - Manual (Page 5)

5
Features
and Benefits
Super Q II Plus
More than twenty years after the
introduction of the Model Q
™ , it still
retains its reputation as one of the
quietest HVAC fans in the world. This
tradition of excellence continues with
the introduction of a new Q fan
acoustical enclosure and duct silencer
so effective and so compact that we
named it the Super Q II.
Super Q II Fan
Available with Model Q fans from 1,000
to 43,000 cfm, the Super Q II enclosure
inhibits radiated fan and motor noise
from entering the surrounding space. It
internally isolates the fan on high
deflection spring isolators so ductwork
can be connected directly to the
enclosure. It is uniquely designed to be
floor or ceiling mounted with ease.
Although the Model Q needs very little
maintenance, future maintenance
requirements were considered by
Super Q II designers. Every unit has the
bearing grease lines extended through
the casing and every unit has two full
size access panels that provide
complete access to all internal
components.
Variable Air Volume Compatible
The Super Q fan is modulated for VAV
with variable frequency drives (by
others), not with inlet vanes. Variable
speed inverter fan modulation offers
exceptional energy saving and
exceptionally quiet part load operation.
VAV variable speed Q fans are
structurally reinforced to handle the
uneven harmonic loadings associated
with variable speed fan operation. In
addition, the factory gives variable
speed Q fans a precise, 10-point
balance to further help assure trouble-
free operation. Only constant pitch
drives should be used with variable
frequency inverters.
Super Q II Accessories
•
Inlet screen — safety accessory
mounted to fan inlet. Heavy, plated
steel wire
•
Inlet bellmouth — used with unducted
or plenum applications. Improves air
flow and reduces noise.
• Inlet silencer (long or short) — rigid
connection to Super Q fan
• Outlet flow stabilization screen — small
mesh outlet screen. Helps offset effect
of poor outlet airflow conditions
• Outlet silencer (short or long) — flex
connected to Q fan
• Variable frequency inverter balancing
and reinforcement (frequency inverter
by others). This option requires
constant pitch drives.
•
Outlet screen — safety accessory
mounted to fan outlet. Heavy, plated
steel wire.
Super Q II